Paper box.



PAPER BOX.

APFLICATIUN FILED` IULV l0. |915.`

l Patented Dea. 7

Mmmm..

2 sumar-SHEET 1.

W.1. Bum.

PAPER Box. y v APPLICATION FILED IULY I0. 1915.

Patented Dec. 7, 1915.l

2 SHEETS-SHEET'Z.

wv EISEN nnirnn STATES VPe'iinrr OFFICE.

. IVILLIAM' J'. BURT, OIE'A OKLAHOMA, OKLAHOMA, ASSIG-NOB' TO-OKLAHOMAIPAPER l COMPANY, A CORPORATION OF, OKLAHOMA.

' PAPER Box.

Specification ot Letters Patent.

Patented Dee. 7, 1915.

Appneatipn mea July 1o, i915. serial No. 39,097.

To vall whom it may concern Be it known that I, WILLIAM J. BURT', a

citizen of the United States of America, a resident of Oklahoma city, inthe county of Oklahoma, State of Oklahoma, have 1nvented certain new anduseful Improve'- ments in Iaper Boxes, of which the following is ,afull, clear, and exact description, reference being hady to theaccompany- Ving drawings, formlng a .part of th1s specication.

My invention relates to. improvements in paper boxes, the main objectbeing to produce astrong and simple paper box.

forced bytheir own paper elements; and it Prior to this invention,foldable paper boxes such as suit boxes, have been so4 formed that theyhave not been amply reinhas 'been found necessary', vor desirable, to

reinforce the end Walls of such boxes byl folding the upper-edges ofsaid end Walls,

,i and theninserting separate reinforcing-elereinforcing elementswhichamply reinforce ments in said' folded upper edges.

An object of my invention is'to produce a paper box of this kind havingits. end walls so formed that' they constitute a series of the box.structure. In combination with these reinforcing elements I produce afastening iiap which is4 so 'formed that it secures the series ofreinforcing elements in its foldedV condition.

Figure I is a plan view of a paper box blank, embodying the features ofmy invention.l Fig. II is a plan view of a portion of the box blank,showing its' end wall memlber as it appears limmediately before thefinal operationv of folding the reinforcing elements. Fig. III is aplan'view of a portion ofthe 'box as it appears after the different wallsections and reinforcing `elements have been folded. Fig. 'IV is atrans- Y.

verse section, showing the box as it appears immediately before thereinforcing elements have been folded into the box. Fig. V is a Viewsimilar to Fig. IV, showing the reinforcing elements folded 'into thebox and se? cured thereto. Fi ,tion on line VI- p an enlarged sectiontaken on line VII'-VII, Fig. V. Fig. VIII isV an enlarged section takenon lineVIII-e-VIII, Fig. V. Fig. IX is a plan view ofthe foldable box asit appearswhen all of its elements are secured permit the extensions 3to vproduce comparatively short VI is an enlarged sec-` I Fig. II. Fig'.VII is together, the box being shown in its knock tensions 3 havingdiagonal scores 4. Each lili Each side wall member is provided withvexside wallmember B is also scored at 2 f to be folded, as will ehereinafter described'. Each end wall section C isV extended andpreferably scored to produce reinforcing elements 5, 6 and 7, each ofwhich is adapted toextend across the box.V The extended portion of eachend wall member is also slitted 'at Sand 9 to lproduce a fastening flap10. The slits 8V i are formed llongitudinally with respect to verselywith respect to said reinforcing ele- 9, of. each endwall member, arelformed between thel reinforcing elements 6v and 7' By forming whichextend across the box. each end Wall member in this manner, I alsolreinforcing elements Il which extend from the slits9 to the side edgesofthe bla the reinforcing lelements on. the end wall members, and theslits 9 are formed trans- In folding the box blank to produce the lstructure shown in Fig. IX, the extended portion of each endwall memberis folded several tunes. The reinforcing element 5, at

the outer edge of end wall C, isfolded onto the reinforcing element 6;

both of these elements are then folded onto the comparatively shortreinforcing elements 11. The

folded elements, `6 and 11 are then folded elements 7, and at this ontothereinforcmg time the reinforcing 'elements occupy the po sition vshownin Figs. II and VI, or as shown in Fig. IV. Before folding thereinforcing elements-into the box, the side Wall members are folded 'sothat their extensions 3 'will engage the end walls of the box, as showninv Figs.V IV or IX. The reinforcin .elements are .thenffolded tooverlap th si e Wall ex-- tensions 3, as shown in Figs. V or IX.Thereafter the ldiferent elements Iare secured together by fasteningAdevices l2 which pass'through the fasteningaps 10 and also throughsidewall extensions 3 and end wall members C. The parts then occupy theposition shown in Fig.- IX, and they may be readily folded to theposition shown `in Fig. V by folding the side and end wall sectionsupwardly, and then placing the curved edges 3 end Wall members.

between the reinforcing elements and the the reinforcing elements aresecured by the fastening fla s 10, and that the end portions of saidroinfercin Aelementsmay be forced away fromy the wa members C so as toperlmit the. curved edges 3 tobe inserted bements after theyy havebeen'folded to cooperate with each other. Heretofore, boxes of this kindhave been provided with end wall membershaving their outer edges foldedfor the purpose of'reinfor'cing the box, and owing to the ineiiciency ofsuchv reinforcing elements it has been a common practice toinsert a.long strip of wood into the upper margins of such end walls for the Itwill be *noted 'that purpose of providing the necessary reinforcement.My box 1s so formed thatthe reinforcing elements form an integral .partlof the box blank ,they may be readily folded to lproduce the desiredreinforcement, and in this connection it is a decided advantage tosecure all of the reinforcing elements by the fastening flaps 10 whichextend from the end wall sections so as to confine all of thereinforcing elements in their folded condition. Iclaim:--

A paper box having a bottom wall member, side wall members, and end wallmembers, said side wall members being provided with foldable extensionswhich engage the l end 'wall members, the outer .marginal portionofeach'end wall member being folded to produce two reinforcing elementswhich extend across the boxand two comparativelyV short reinforcingelements which lie between the rst mentioned reinforcing elements,saidmarginal portion being slitted at oints between said' comparativelyshortre-V inforcing 'elements and a1o,between the longer reinforcingelements, sovas to produce a fastening flap which'i extends from saidmarginal portion, the foldablegextenions of the side wall members beingitted to said fastening flap, and means for securing said fastening Hapand foldable extensions. v

. 'WM. J. BURT.

